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  1. Plumbing: Drain lines to the sump and refugium

    My 400g reef had five drains in the external overflow. They are equally spaced apart, and plumbing these into my sump was a little challenging. I'm sure I got a few gray hairs trying to come up with the perfect plan.

    First of all, it needed five Durso Standpipes. All five are 1.5" black PVC going into 1.5" bulkheads. The drainlines are 1.5" as well.

    Each Durso is drilled with a 3/16" hole in the cap to vent the drain. None of the Durso Standpipes were glued. They ...
    Tags: matrix
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    Plumbing